Her tweet comes after the 18-year-old told In Touch she's going to seek "treatment for my battles." She didn't specify what type of treatment, but said she's "going to get help and make better choices."

Kenney says she was running with a "really fast crowd" and doing things that weren't legal because she's not 21. Kenney says she felt anxious and depressed. She called it a slippery slope that she didn't want to go down.

'Tonight': Rachel Brosnahan Still Plays 'Pokemon Go'

"Marvelous Mrs. Maisel" actress Rachel Brosnahan talks about being nervous to host "Saturday Night Live," adding new awards to her "toilet shelf" and her and her husband's obsession with "Pokemon Go."

(Published Friday, Jan. 18, 2019)

She says that while it didn't affect her work, her private life suffered.